Heat-insulated jar and casing therefor



e, P.' ALTEMERG;I l A -HEAT msumfo JAB-AND emma Tumi-0a.

'.rlLEo ri, al'. i919.

Patented 'Fe-b. 13, 19,23.

" UNI-TED sTATs GEORGE P. ALTENBERG, or CINCINNATI,

COMPANY, or CINCINNATI, omo,

O HIO, ASSIIQGITO'B, .TO lTHE ICY-HOT BOTTLE- A CORPORATION F WEST VIRGINIA.

BEAT-INsULA'rEn uam cAsme'TnEanron.

Application tiled February To aZZ whom 'it may concern:

' ther, to

' Be it known that I, BERG, a citizen ofthe United States, residing at Cincinnati, in" the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Heatnsulated Jars and Casings Therefor, of which the following is a specification.

It is the object ofmy invention to provide a heat-insulated jarand casing-therefor of simple construction so arranged that the same may be readily assembled; fur- (provide a wide-mouthed glass heatinsulate jar and `a casing therefor so constructed that the mouth-end of the'. glass jar projects to substantial extent through the mouth-end of the casing so as to avoid contact between the food contents ofthe glass jar with the casing parts in inserting or removing the contents; further, to provide simple means for forming a tight joint between the mouth-ends of the inner glass vessel and the mouth-end of the casing; and, further, to provide simple means for holding the inner glass vessel in place in the casing, and for securing the topl to the casing.

The invention will be further rendiiy nnderstood from the following description and claims,l and from lthe drawings, 1n which latter:

Fig. 1 is a side elevation of my impro'ved device, partly broken away, and partly .in axial section on the line 1 1 of Fig. 2.

Fig. 2 is a plan view of my improved de# vice, partly broken away.

Fig. 3 is a plan section ofthe same, taken on the line 3 3 of Fig., 1.

Fig. 4 is a plan view of the base-member of thecasing;

' Fig. 5 isa' perspective v`view of the lower positioning strip, and,

- Fil 6 is a sectional detail the line 1 1 of Fig. 2.

11 represents the inner vessel, exemplified as a glass vessel comprising an inner wall 12 and an outer 'wall 13, connected at the view, taken von lmouth-end of the vessel by means of a crossseal 14, there being a heat-insulated space 15 between said walls, this being preferably a vacuum-insulated space, the vacuum being created through a suitable teat..16, which is sealed to retain the vacuum in the space. The inner surface of the wall ofthe space may be provided with a sultable silver coat- GEORGE P. ALTEN- tendin taper toward body-me ber having a reduced mouth-end or neck 23. 'The base-member isf'con'n'ected to the bodymember by thread connecting -means',` comprising a threaded iiang'e 24 fast in the lower end ofthe body-member, and a threaded ange 25 forming a fixed part of the base-member. The mouth-end of the bod -member termlnates'in an inwardly ra` dial y extending nular recessy 27 is vshown assub'stantially cylindrical. Below this annular recess 4t ere is an outer inflange 26,' formingvanl anwardly eidse'nd'ng annular groove ,29, at'the bottom of which there is an outwardly exannular enlargement 30. base -o this annular enlargement, the casing is provided 'with an outwardly extending annularshoulder 31, forming the base of the neck-portion of lthe bod f member.

A cushion-ring 35 is receiv vin the annular recess 27 and is exemplified as a resilient compressiblei'cushion-ring, for in stance of rubber.. The inner peripheral face of this cushion-ring is -preferabl of smaller diameter than 'the diameter. of t e inner peripheral face of the vedge of the flange 26 to permit substantial compression 'of the cushion-ring. l "t The inner vessel is, adjacent' to its mouthend, provided, with an outer. tapering portion4 36. tapering with a substantially long the cross-seal 14, whereby the outer wall is at its mouth-end provided with a substantially long taper tapering toward the mouth-end'of the inner vessell and toward the axis of the vessel. What) may be termed a tapering neck is thereby formed at the mouth-end of the inner vessel received ,in the neck of the casing. l

"':iln assembling the parts, the tapered neck of the inner vessel extends through the annular cushion-rin 35 and `theinwardlyradially extending ange 26, the tapered neck of the inner vessel acting on said cushion- 4ring to compress thesame radially into its annular recess, end pressure being exerted between the'inner member and the casing, so'

At the the outer wall 28 of which By these meansv a closejoint is provided between the inner veel and the casing which will prevent the leakage or seepage of' any moisture into the space between the inner vessel and the casing. At the same time the par-ts are readily disconnectedfor cleaning purposes or for renewal of any o f the parts. The rubber cushionring is mexpensive and readily replaced, so that a secure joint between the parts may always be assured. The 'casing is preferably made of sheet metal. The form of the neck of the inner vessel also insures central positioning of said mouth-end of tlhe inner vessel with relation to the mouth-end of `the casing.

Means are also provided for centering and retaining the bottom of the inner vessel with relation .to the casing. This is accomplished, in the present e-xemplifcat-ion, `by means o-f a metal strip 40, sho-wn as a fiat strip, positioned in .the base-member.' This positioning is accomplished by providing the base-member with a slight annular recess 41 between the upwardly extending threaded ange 25 thereof and the bottoni wall 42, the latter' having its peripheral edge turned over upon the-outwardly eX- tending flanged lower end of the threaded flange, being curled over the flange of said outer end and provided with a suitable knurl, shown at 43,- wherebythe base-member is readily gripped and turned with relation to the body-member. The strip 40 is preferably provided with outer arcuate ends 44, the latter fitting into said annular recess 41, and impinging the outer wall of said recess, thereby positioning the stripcentrally with relation to the base-member.

The strip 40 is provided with a central upward bulge 45. rThe inner member is rov-ided with the central or axially depen ing teat 16. A cushion-sleeve 47, for instance of cork, is receivedabout Athe central bulge and the teat, the bulge and tea-t being received in the bore of the sleeve. tom of the inner member is provided with a tapering outer surface at the teat, receding away from the cushion-sleeve. The pressure of the cushion-sleeve upon this tapered bottom axially of thej ar causes centralizing pressure between the sleeve and the bottom of the inner member, whereby the bottom end of the inner member is centrally positioned with relation to 'the casing. The

cushion-sleeve 1s preferably secured to the strlp 40, as by means of a suitable cement.

A top, vshown at 5l, is provided for the jar. ltis preferably slightly tapering outwardly toward its lower end and is arran ed to have its iner face contact the ou-t'er peripheries of the outer wall 28 and the movement between the tubes.

e-nlargen'lent 30, with' its lower end resting on the annular shoulder 31.

F or securing the parts in place in simple manner, 1 provide lthe wall 28 with outwardly struck lugs 52, struck outwardly from the inside' of the annular recess 27, whereby outwardly laterally extending recesses a 53 are formed in said wall. The top is provided with a bayonet slot 54 for each of the lugs, shown as comprising a portion extending lengthwise of the jar and a portion extending laterally fromthe latter portion, this laterally ex.- tending portionbeing slightly inclined toward the top face of the top for acting v with a screw effect on the top to firmly close the stopper in place against pressure in the inside of the vessel resulting, for instance, from the closure of the stopper upon highly heated contents emitting steam. rllhese means comprise telescoping tubes 58, 59, the opposite ends of which are closed, as shown at 60, 61. The outer one of these telescoping'. tubes is pressed into and firmly held in ka hole 62 in the stopper, the outer end ofthe said tube being provided withva laterally extending flange 63 resting on top of the stopper.

llh'ere is a spring 64 in the tubes between their closed ends, acting to cause separating The endwise separating movement between the tubes vis l limited by means of limiting lips 65 struck up from the wall of the outer tube, the upper ends of the lips being integral with the tube and the lower ends extending inwardly of the tube. The inner tube is provided at its inner end with an annular flange 66,y which'is pressed inwardly past the lips, the lips contracting the annular flange upon outward movement/caused by the spring, and thereby limitingoutward movement of the outwardly extending tube. When fthe top is placed on the casing, it acts to compressthe spring and thereby rmly press the stopper in place. The outer vend of the outwardly extending telescoping tube, which is shown rounded, isreceived in an upwardly extending central recessA 6T in the upper wall of the top. l

.Havin thus-fully described my invention, what 1c aim as new and desire to secure by LettersI Patent, is:

1. 1n combination, an inner vessel com'- casing,

prising an inner wall and an outer wall connected at the mouth of said vessel by a crossseal, said walls having a heat-insulated space therebetween, the mouth-end of saidv outer wall being tapered toward said cross-seal, af

a top therefor, said casing comprising a mouth-section and a base-section, said mouth-section having a mouthfend provided with a radially inwardly extending flange to form an annular recess lco-mprising said flange and an outer wall, said last-named wall provided with outwardly pressed lugs forming recesses in the inner face 0i' said last-named outer wall, said top having slots coacting with said lugs'to form connecting means between said casing and said top',any annular resilient cushion-ring in said annular recess, and means for moving said casing-sections toward one another to connect the same, whereby axial movement is caused between said tapered outer wall and said mouth-section to press said annular cushionring outwardl in said annular recess and' into said lugorming recesses.

2. In a vacuum insulated food jar, the combination of a A vacuum-insulated inner member' and a casing therefor, said inner member having a tapering neck-portion, said casingy provided with a neck-portion the upper end whereof has an annular inturned flange forming an annular recess therebelow,

a cushion-ring in said recess, said tapering neck-portion of said inner member received through said cushion-ung and said lnt'urned flange, reslhent means between said casmg and said inner member to'hold said inner member in said easing, the mouth-end of,

said neck-portion of said casing provided with outwardly struck lugs, a top provided with coacting slots to connect said top 'and said casing, a stopper for said inner mem' ber, and spr1ngmea`ns between said stopper and ltop -secured to said stopper, 'said top provided with a central recess, and said spring-means provided with a eoacting face receive/d in said central recess to center said spring-means.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

GEORGE P. ALTENBERG.

Vlitnesses:` j

Ivr M. PENGE, CARL'NAssE. 

